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Do carbon dioxide and water have the same molecular geometry? If not, what attributes cause these molecules with similar formulas, AB2, to have different geometries?
This precipitate dissolves upon addition of concentrated HCL. Acidification of a solution of the solid with HNO3 followed by addition of AgNO3 causes formation of a white precipitate. What is the identity of the original solid
In an actual experiment, 100 g each of copper and nitric acid are used and 70g of copper(II) nitrate is obtained. In this experiment, what is a) the limiting reactant
A metallic solid with atoms in a face-centered cubic unit cell with an edge length of 385 pm has a density of 6.84 g/cm3. Calculate the atomic radius of the metal.
The decay of radioactive elements follows first-order kinetics. Therefore, the rate of decay can be described by the same integrated rate equations and half-life equations that are used to describe the rate of first-order chemical reactions.
Suppose the reaction is at equilibrium 2NOBr (g) 2NO(g)+Br2(g) Delta Hf NOBr=82.2 Kj/mol DeltaHf NO=90.4 KJ/mol What happens to Kp when the temperature is increased
Calculate the concentrations of all species in a 0.790 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10-2 and Ka2 = 6.3× 10-8.
The half life of mercury-197, used for kidney scans, is 64.1 hours. If a patient undergoing such a scan is given 5.0 ng of mercury-197, how much will remain after 7 days? After 14 days? After 21 days
How many grams of chromium metal can be formed if a 0.500 amp current is passed through a solution of Cr3+ for a period of 45.0
at 25c the standard enthalpy of formation of HF(aq) is -320.1 kj/mol. of OH(aq) it is -229.5Kj/mol. of F (aq) it is -329.5 Kj/mol.of H2O(l) it is -286.1Kj/mol.
determine what would be its temperature after absorption of 9.4 10-2 kwh of heat if 1.45 l of water is initially at
How many lone pairs of electrons are there in a molecule of crotononitrile?
gaseous mixture of 2.34 kg of silane, Sih4 and 55.4 kg of Argon. Determine the mole fraction of silane
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